Embryo Transfer

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The ability to have stallion semen sorted for sex-selected foals is being offered on a commercial basis through a new alliance between Sexing Technologies and Equine Reproduction Innovations. The use of sex-selected semen in conjunction with...
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Mira, a foal born Aug. 4, runs happily in Binghamton, N.Y., even though her mother died almost a year ago from a ruptured intestine. Her birth was made possible through a team at Cornell that might be among the first to successfully extract...
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Embryo transfer is a management procedure for producing foals by mares that either are in training or have reproduction problems. In some cases the goal is to allow young performing mares to reproduce while continuing their careers. In other cases th...
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Tissues from both the recipient and donor mare, as well as from the two stillborn foals, were submitted for microsatellite analysis. The analysis verified that the foals had identical genotypes and resulted from the transferred embryo....
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The equine uterine environment plays an integral role in the early developmental stages of pregnancy, even prior to implantation of the embryo, according to British researchers who recently examined the role of the uterus in ...
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Horse owners with a mare that can't carry a foal to term need not give up on the idea of getting a foal from her. One potential solution is embryo transfer (ET), a technique that involves taking a fertilized egg from the desired mare and...
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According to a group of European reproduction specialists from the Centre for Artificial Insemination and Embryo Transfer, University of Veterinary Sciences in Austria, subclinical infections of the uterine lining can occur following...
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Four speakers discussed advances in assisted reproduction to wrap up the session on the emerging science of horse breeding at the Kentucky International Equine Summit, held in Lexington, Ky., April 28-29. The speakers agreed that the key is not...
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"For years we've taught the industry about reproduction, but we haven't taught about breeding," said Gary Carpenter, executive director of the American Quarter Horse Foundation during a roundtable at the International Equine Summit, held in...
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Palm Beach Equine Medical Centers, headquartered in Wellington, Fla., recently purchased the New Bridge Embryo Centre in Aiken, S.C. The facility is now called the Palm Beach Equine Embryo Center (PBEEC). The goal is to continue to provide top-notc...
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A group of Dutch researchers reported evidence that the equine conceptus (i.e., the embryo and associated membranes) might be directly responsive to the reproductive hormones progesterone and estrogen,...
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It's no secret that embryo transfer is expensive, and that its success rates are lower than those of some other methods of equine reproduction. "Commercially, single embryo recovery attempts have a 50% recovery rate, and there is a 50-65%...
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Embryo transfer (ET)--recovering the embryo from a bred donor mare for placement into a recipient mare that will carry and raise the foal--has become a useful reproductive tool for a growing number of breeders. Mares that are competing, or mares...
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Embryo transfer has been well-established in the horse industry as a method of obtaining multiple offspring from a valuable donor mare. The increased usage of this technique prompted Colorado State University (CSU) researchers to examine the...
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In a study from the University of Saskatchewan, Canadian researchers compared ovulation rates, embryo recovery and quality, and subsequent pregnancy rate using two estrus synchronization methods--prostaglandin (PG) administration and progesteron...
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Much of the discussion involved sharing professional information, such as specific instruments involved, but they also addressed such matters as preparation of the recipient mare and the most optimum state of embryo maturation for transfer....
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"Death or euthanasia of a valuable mare results in loss of her genetic potential," she said. "However, when a mare dies, her ovaries still contain potentially viable oocytes that can be harvested to produce additional offspring."...
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Hudson found that embryo recovery can be enhanced by slight modifications of the standard embryo flush technique, and embryo transfer success can be improved by verifying that the embryo was not retained in the tip of the sheath with which the veteri...
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Successful breeding of horses is not always as easy as presenting a receptive mare to a fertile stallion. There are many things that can go awry with the reproductive process. Broodmares that were once fertile and produced many excellent foals...
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If your broodmare or stallion is having reproductive problems, you might need a specialist to figure out what's wrong. And that specialist might use knowledge gained from the annual conference of the Society for Theriogenology held in Columbus,...
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Q. A friend of mine suggested that receiving mares would influence the foals--­especially regarding future performance ­records--in a negative way. Is there any proof or research available about the receiving mare's effect on the foal?